七年级下册Section B精品课件ppt

Period 4（Section B 2a-Self Check）

设计说明

　　本课时的重点是在2a-2c的阅读教学中对学生进行阅读技能培养。利用课文插图、结对合作讨论等方式，谈论课文内容，让学生在参与的过程中，掌握课文中的单词、句式等知识；3a-3b的任务是为学生的笔头输出服务，在从语篇填空到写作这种梯度练习中，让学生学会总结、充分利用教材提供的词汇独立完成写作任务。

教学目标

　　1. 知识目标：

　　（1）掌握单词和短语：save，symbol，flag，forget，place， water，danger，cut，down，tree，kill，ivory，over；get lost，be in（great）danger，cut down，（be）made of。

　　（2）读懂2b中关于泰国大象的文章。

　　（3）仿写作文，介绍自己喜欢的动物及原因。

　　2. 能力目标：

　　学会熟练运用英语谈论、描述动物，并说明喜欢的原因；培养学生的阅读和写作能力，训练阅读与写作技巧。

　　3. 情感目标：

　　通过对一些濒临灭绝的动物的了解，唤起学生热爱大自然、保护动物的意识。

重点难点

　　1. 重点：

　　（1）本课时所学词汇：save，symbol，flag，forget，place，water，danger，cut，down，tree，kill，ivory，over；get lost，be in（great）danger，cut down，（be）made of。

　　（2）阅读课文“Let’s Save the Elephants”。

　　2. 难点：

　　熟练运用本单元所学词汇及句型介绍喜欢的动物。

教学准备

　　1. 准备部分濒危动物的图片和一幅泰国的国旗图片。

　　2. 准备多媒体课件，2b的音频文件。

教学过程

　　Step 1　Warming up & Leading in

　　T：Good morning，boys and girls! Look at the screen. Let’s have a chant!

　　Step 2　Presentation

　　T：Now，boys and girls，listen to me carefully! Please answer my questions：What animals do you like?

　　S1：I like tigers.

　　S2：I like koalas.

　　S3：I like elephants.

　　T：Why do you like elephants?

　　S3：Because they’re big，interesting and smart.

　　T：Where are they from?

　　S3：Sorry，I don’t know.

　　T：OK，let me tell you something about the elephant. The elephant is one of Thailand’s symbols. Today elephants are in great danger. We must save them. People cut down many trees so elephants are losing their homes，and people also kill them for their ivory.

　　［Thailand，symbol，be in（great）danger，save，cut down，tree，kill，ivory（板书单词、短语）］

　　（Show the students some pictures.）

　　T：Well done，class. Please look at the pictures. What’s this in English?

　　Ss：It’s a flag.

　　T：Yes，it’s a Thailand’s flag.

　　Look at picture 2. The elephant is drinking water. Do you know water?

　　Ss：Yes.

　　T：In picture 3，there’re many beautiful things. They’re made of ivory.

　　...

　　T：Work in groups. Read the new words and phrases.

［flag，water，be made of，forget，place，over，get lost（板书单词、短语）］

　　Step 3　Practice

　　1. Translate the words and phrases into Chinese.

　　Thailand泰国　　　　 save救；救助

　　symbol象征  forget忘记；遗忘

　　place地点；位置  danger危险

　　be in（great）danger处于（极大）危险之中

　　cut down砍倒  kill杀死；弄死

　　tree树  ivory象牙

　　over超过，多于；在……上方

　　Thai泰国人（的）；泰语（的）

　　2. Look at 2a. Check（√）the animals that you think are in great danger. And give the reasons you know. Please talk in groups.

　　S1：I think tigers are in great danger because people often kill them.

　　S2：I think pandas are in great danger because people cut down many trees，and pandas are losing their homes.

　　Step 4　Reading

　　1. Fast reading. Read the website article quickly and check（√）the best title for it.

　　The answer：Let’s Save the Elephants

　　2. Careful reading.

　　T：Now read the website article again and find the answers to these questions（on the big screen）.

　　（1）What do the students from Thailand want to do?

　　They want to save the elephants.

　　（2）What can elephants do?

　　They can play soccer or music. They can also draw very well.

　　（3）What do you think of elephants?

　　I think they’re smart.

　　（4）Why are elephants in great danger?

　　People cut down many trees so elephants are losing their homes. People also kill elephants for their ivory.

　　（5）How do we save the elephants?

　　We must save the trees and not buy things made of ivory.

　　3. Read the website article again and find out the phrases.

　　（1）拯救大象save the elephants

　　（2）泰国的象征之一 one of Thailand’s symbols

　　（3）好运的象征 a symbol of good luck

　　（4）走很长时间的路 walk for a long time

　　（5）迷路 get lost

　　（6）有食物和水的地方 places with food and water

　　（7）砍倒很多树 cut down many trees

　　（8）象牙制品 things made of ivory

　　4. Look at the mind map in 2c. Read the website article  again and fill in the blanks.

　　Check the answers.

　　Answers：Importance in Thailand：a white elephant on it；good luck

　　Abilities：soccer or music；draw；remember

　　Facts and figures：cut down；their ivory；only about 3，000 elephants，100，000

　　How to save them：trees；buy；March 13th

　　5. Work in groups.

　　（1）save the elephants意为“拯救大象”，其中save为及物动词，其后可接名词或代词作宾语，意为“拯救；挽救；救助；节约”等。

　　救助动物save the animals

　　挽救生命save the lives

　　节约水save water

　　（2）当“one of+可数名词复数形式”作主语时，谓语动词用单数形式。

　　One of the lions is（be）from Africa.

　　（3）with表示“带有，具有”，通常用作后置定语。

　　a house with a garden 带花园的房子

　　a girl with long hair 留长发的女孩

　　（4）cut down中down为副词，当人称代词作宾语时，必须放在cut和down之间。

　　Here is the tree. Please cut it down（砍倒它）.

　　（5）over意为“（数量）超过，多于”，与more than同义。

　　（6）made of与be made of

　　①made of用作后置定语，意为“由……制成的”，of后接名词，表示制成品的材料。

　　desks made of wood 木制课桌

　　things made of plastic 塑料制品

　　②be made of用作谓语，意为“由……制成”。be动词有人称、数和时态的变化。

　　The desks are made of wood.

　　这些课桌是由木材制成的。

　　My sweater is made of cotton.

　　我的毛衣是棉线的。

　　（7）“Isn’t she beautiful?”意为“难道她不漂亮吗？”，这是否定疑问句，常用来表示反问，表示说话人的看法。句式结构为“连系动词be/助动词/情态动词的否定式+主语+其他？”，其回答为：事实是肯定的用Yes，事实是否定的用No。

　　—Can’t you swim? 难道你不会游泳？

　　—No，I can’t. I’m afraid of water.

　　　是的，我不会。我害怕水。

　　Step 5　Writing

　　Work on 3a.

　　T：Look at 3a. There’s a beautiful picture. What animal is it?

　　Ss：It’s a giraffe.

　　T：What’s the giraffe’s name?

　　Ss：Becky.

　　T：Yes. Becky is Jill’s favorite animal.

　　1. Fill in the blanks with the words in the box.

　　2. Check the answers. Then read the passage aloud together.

　　Answers：beautiful；Africa；years；like，because；lives

　　3. Learn how to describe the animal.

　　Name→From where→Age→Why do you like it? →Where is it now?

　　Work on 3b.

　　T：Let’s write a passage about animals.

　　1. Write a description of a panda using the words in the box in 3b.

　　2. Check in groups.

　　3. Share some of the students’ writings.

　　Step 6　Self Check

　　Exercise 1：Add more words in the chart. Then write at least five sentences using the words.

　　Answers will vary.

　　Exercise 2：Match the questions and answers to make a conversation. Then write your own conversations.

　　Answers：A：What animals do you like?

　　B：I like lions.

　　A：Why do you like lions?

　　B：Because they’re big and beautiful.

　　A：Where are they from?

　　B：They’re from Africa.

　　Step 7　Summary

　　In this lesson，we have learned：

　　1. New words：save，symbol，flag，forget，place，water，danger，cut，down，tree，kill，ivory，over

　　2. Phrases：get lost，be in（great）danger，cut down，（be）made of

　　3. Reading skills：make mind map

　　4. Writing：How to describe an animal you like.

　　Step 8　Homework

　　1. Copy and read the new words.

　　2. Read and retell the passage in 2b.

　　3. Write an article. The title is My favorite animal.

板书设计

教学反思